導火線

导 = 寸 + 巳 : Don Quixote brought a ghetto blaster to the aorta and is break dancing next to the house fire. The snake, who acts as director, thinks "not bad" and shows her approval with her body, which forms a "thumbs up" silhouette.

火 = 人 + 丶 : Helga Horse (hu) and Neanderthal Man (人) are starting a fire (火) in the observatory's living room (o3) with two large petals (丶).

线 = 戋 + 纟 : Mnemonic symbol: barbed wire.

线 = 戋 + 纟 : The silk worm wants to use the floating tank in the anthill's bathroom, but there's already Marie Curie inside—and she secured the tank by setting up barbed wire all around it.